Baseline based on the gradient boosting
Let's build a final baseline based on the Random Forest. You've seen a huge score improvement moving from the grouping baseline to the Gradient Boosting in the video. Now, you will use sklearn
's Random Forest to further improve this score.
The goal of this exercise is to take numeric features and train a Random Forest model without any tuning. After that, you could make test predictions and validate the result on the Public Leaderboard. Note that you've already got an "hour"
feature which could also be used as an input to the model.
Diese Übung ist Teil des Kurses
Winning a Kaggle Competition in Python
Anleitung zur Übung
- Add the
"hour"
feature to the list of numeric features. - Fit the
RandomForestRegressor
on the train data with numeric features and"fare_amount"
as a target. - Use the trained Random Forest model to make predictions on the test data.
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
from sklearn.ensemble import RandomForestRegressor
# Select only numeric features
features = ['pickup_longitude', 'pickup_latitude', 'dropoff_longitude',
'dropoff_latitude', 'passenger_count', ____]
# Train a Random Forest model
rf = RandomForestRegressor()
rf.____(train[____], train.fare_amount)
# Make predictions on the test data
test['fare_amount'] = ____.____(test[features])
# Write predictions
test[['id','fare_amount']].to_csv('rf_sub.csv', index=False)